How We Generate Superheated Steam
Water entering the steam generator is directed to the topmost layer of coil from where it spirals downwards through each level to the lower part of the boiler. In this lower section, the tube forms a cylindrical shield around the combustion chamber. One of the main advantages of this design is that the steam generator contains only a small volume of water and is therefore safe and can be started up very quickly from a cold condition.
Boiler feedwater is forced through the coil by Clayton variable speed, positive displacement pumps. As the water passes through the steam generator it picks up heat, and steam is produced at the outlet from where the flow is directed to a steam / water separator . The required superheat is obtained by passing the dry steam back through the integral superheat coil and out to the steam system.
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